The Hue/Saturation+Colorize command does not “separate” an image, so it will still be RGB and will come down to a CMYK or other “separation” method to create distinct/separate channels that would equate to a printing separation/plate.

Grayscale is one channel/separation/plate.

As mentioned above, you can create a duo/tri/quad image from a grayscale image, using special transfer curves to decide where the colour appears.

There are of course other methods.

Can you provide a sample image, this whole discussion is highly dependent on the source image.

Are you having this printed as spot colour, or standard four colour process CMYK?

A 2 spot colour run will have half the plates, but the inks will be more expensive and there will be wash up time on the press, possibly ink mixing fees etc.

You can have this as a 2 colour job, if you are willing to sacrifice the black beak and eye! There will be solid yellow waves and solid/tints of pink. You can of course overprint/mix the yellow and pink to form a “visual 3rd colour” from only 2 colours, but this will not be black, the beak and eye would be a redish hue.

You can have this as a 2 colour job, if you are willing to sacrifice the black beak and eye! There will be solid yellow waves and solid/tints of pink. You can of course overprint/mix the yellow and pink to form a “visual 3rd colour” from only 2 colours, but this will not be black, the beak and eye would be a redish hue.